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From: "John Clement" <clement@hal-pc.org>
Date: Tue 04/04/2006 6:42 AM GMT+08:00
To: "'Forum for Physics Educators'" <phys-l@carnot.physics.buffalo.edu>
Subject: Re: [Phys-l] Image of object placed at focal point
I think it says the OBJECT is at a point, and does not use the word point in
regard to the image. So do you mean the object at the focal plane?
John M. Clement
Houston, TX
Isn't it a bit confusing to talk about an image being formed at a "point"
?
Perhaps at a "plane" .....but certainly not a dimensionless point!.
That is ... unless it is not a real object at the source ???
.... or as Confucius once said..."He who sits on the point of a tack, is
better off."